Plants and their ways in South Africa . grainwhich is rust proof, for it has been found that certain varietiesof grain are resistant to the rust fungus, the fungus threads(hyphae) are checked after entering the stomata of the resistantgrains. This remarkable discovery is of great importance tofarmers (Bififen, 1905-7). Dodder [Cuscutd) and Cassytha are parasites which havelost their leaves, roots, and most of their chlorophyll. At someseason of the year, however, Cassytha stems are quite green.Try to loosen the hold of these plants from the plants aroundwhich they are twining and they betray t
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Plants and their ways in South Africa . grainwhich is rust proof, for it has been found that certain varietiesof grain are resistant to the rust fungus, the fungus threads(hyphae) are checked after entering the stomata of the resistantgrains. This remarkable discovery is of great importance tofarmers (Bififen, 1905-7). Dodder [Cuscutd) and Cassytha are parasites which havelost their leaves, roots, and most of their chlorophyll. At someseason of the year, however, Cassytha stems are quite green.Try to loosen the hold of these plants from the plants aroundwhich they are twining and they betray their means of living. Dependent Plants 99 They send out root-like bodies which penetrate their host (asthe plant is called which supplies another with food) andappropriate all the food they require. Mistletoe and its relative Loranthus penetrate their host ina similar manner. They cannot obtain food from the soil ofthemselves, but there is chlorophyll in their stems and leavesso that they can manufacture the food from the raw material.